FG
IN
USE
LED
STEP
NOTDR
0.0.
MOTOR
-INDEX
-TRACKllj'j
-
WR
IT
E
PROTECT
-
READ
DATA
-
READY
L2
FERRITE
5
4
~OTEL
o
~
NOT INSTALLED
o
RP1
-{>
1Knx6
R23
+5V
+12 V0C ---".£,.....:.'---1
+5V
RETURN
-¥r"-----.--4--t~r...,-.;.~
RY
+ 12 V
RETURN
~t~~"---e--'-"'~
R24
MA151A
+ 5 V ......
~~I-
__
--J
+12V
+5V
R22
820
4.7
L7
33lJH
t3::~}
r--\II~--4~t12V
t'2V~
C34
~
~~~'-=.L~2~:;r;.~0~.
1~lJ~_.!-m~
"u:
~
\7
O'
7'}----
.....
~--..a..:..t
IC2
27 2
rz-
'0~
HA13421PMP
t-=2:.;.3-------..:.3..JV}~
.-=-
__
..:..0
1
....
6
~-------~,~
~----'l----'f-:----Wlt---
+ 5 V
XTAL
+SVA
R51
39K
RS2
1.8K
RSO
39K
C'20.022)J
C11
0.022..LJ
R49
8.2K
TPS
~
-e
CD
U
U
0
.0
0
0
PHLA
DGND1
NINDEX
2
NTRACKf)
3
NWPRO
4
HRDDT
6
NRDY
8
NDMACT
11
Ie
1
MOSO
12
FQL01280B4
NSTPACT
NSD1
NSD2
INU
9
WVCC
weND
0 0
C
N
N
ouAV
30
x:
~
x:
0
u
-
~
0
c z
u
u
u
zu
c:c
e2
0
w
...J
U
>
V)
(J')
u>AG
350.
1
jJ
a: ...J
::t:
0
0
10
10
uu
NO
18
20
19
22
16K
R41
3.6K
NOS
PWP
9
NIDX
PTKD
N
M
~
PHSD
0
0
0
HD1
:z:
:z:
:z:
23
26
27
29
R21
B.2K
R19
R20
16K 16K
COM
R/
W 1
---'\I+r.;.;;;...--;~----t------+----:::----+--+---.~--,.
ERASE
~,I+J-~--'-----+--f..1
)t-...~---...~---.~
GND
~
NC
~
i'5V
SIDE 0 R/W 2
CliM
IVW
1
~~---------:=--r-;;:;t;;;;;:;;~---t--4-----,
--t:==----J.--l-~___I__t_-l-~-!~~~
H
MTRON
--*~--_t_------+-+-+--+-+-
......
----::~-----t
0 I RSEL
~:-=---+_------+-+-+--+""-"""-"'--fJYVrF::.t
NSTEP
~...a.;.---+--------+--+--+----lt----ill--t--~--~
NWRDT
","*~--+-----~--+-'--'-of-r--+----=-I
HWRC
T
-*-=:..--_t_-----+-.----+-+~-_t_--~
NS
IDESEL
~~---+------4-----+-+_+-+_---=.~
NH
LI
NU
~------
--+-+-_+______1~fJWw....r;.z.l
NLO
WHO
MEDIA SENSOR
PC
MEDIA SENSOR PE
NEOlA
SENSOR
LA
NC
Ne
WRITE PROTECT
PC
WRITE PROTECT PE
INDEX PE
INDEX
PC
SIDE 1
TRACK
00
PC
TRACK
0D
PE
TRACK
0G
LA
NODE
SELECT
- DRIVE
SELECT
1
- DRIVE
SELECT
2
- DRIVE
SELECT
:5
- DRIVE
SELECT
4
SCHEMATIC DIAGRAM [JU-475-4AGGl
-
MOTOR
liN
DIRECTION
SELECT
-STEP
-
WRITE
DATA..
-
WRITE
GATE
- SI
DE
SEL£CT
-
IN
USE
/ -HEAD LOAD
16.
-
27-